California air quality

Camino, California Air Quality

El Dorado County38.738, -120.675

The nearest monitor to Camino, at Placerville - Canal Street, 7 miles away, measured an index of 33 at Sun, 6:00 PM PDT, which is Good for ground-level ozone. El Dorado County AQMD forecasts Good for Placerville today and Moderate tomorrow. NOAA’s analysts drew light wildfire smoke over the town today.

Measured now
33 · Good
Today
44 · Good
Tomorrow
51 · Moderate
Pollutant
Ozone

Fine particles on the map

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Camino, California. Open it for the live map, where it pans and zooms.

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Camino, California Open the live map with the particulate forecast

Map layer from NOAA National Air Quality Forecast Capability. Boundaries from the Iowa Environmental Mesonet.

Alerts in force

An Air Quality Alert is issued by the National Weather Service on behalf of a state or local agency when pollution is expected to reach a level that harms health. An Air Stagnation Advisory means the air will not move enough to clear what is already in it.

None are in force near Camino right now. All California warnings.

Now

Good

Nearest monitor
Placerville - Canal Street, 7 miles away (site 840060172004)
Index measured
33 · Good
Measured at
Sun, 6:00 PM PDT
Ozone
37 ppb
Reporting area
Placerville, CA, 7 miles away
Reported by
El Dorado County AQMD
Area index
33 · Good

Measured, not modeled. AirNow observations are preliminary until the operating agency certifies them, which happens months later.

Today and tomorrow

El Dorado County AQMD's own forecast for Placerville, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGood44Ozone
TomorrowModerate51Ozone
Tuesday, September 22Moderate58Ozone
Wednesday, September 23Moderate67Ozone
Thursday, September 24Moderate74Ozone
Friday, September 25Moderate61Ozone

The forecaster’s discussion

Written by El Dorado County AQMD for Placerville and filed with AirNow.

Sunday, increasing clouds and slightly cooler temperatures will hinder ozone production as a trough of low pressure aloft approaches central California. Therefore, ozone levels will be high-Good. Monday, mostly sunny skies and temperatures warming into the mid-80s will enhance ozone formation in the Sacramento region. However, light to moderate onshore winds will develop through the afternoon, dispersing pollutants and leading to low-Moderate ozone levels. Tuesday, lighter winds will allow pollutants to accumulate in the Sacramento region. Furthermore, mostly sunny skies with warm temperatures will continue to aid ozone production, yielding mid-Moderate ozone levels.

Hour by hour

NOAA’s National Air Quality Forecast Capability, bias-corrected against monitors, for this town’s own coordinate. The worst hour ahead is an index of 52, Moderate, around Tue, 3:00 AM PDT, from the run issued Sun, 5:00 AM PDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Sun, 7:00 AM PDT12Good2.1
Sun, 8:00 AM PDT10Good1.5
Sun, 9:00 AM PDT12Good2.4
Sun, 10:00 AM PDT16Good3.8
Sun, 11:00 AM PDT19Good4
Sun, 12:00 PM PDT19Good3.7
Sun, 1:00 PM PDT30Good432
Sun, 2:00 PM PDT29Good5.131.9
Sun, 3:00 PM PDT32Good7.232.6
Sun, 4:00 PM PDT38Good834.3
Sun, 5:00 PM PDT41Good7.836.4
Sun, 6:00 PM PDT41Good7.438.3
Sun, 7:00 PM PDT37Good6.139.5
Sun, 8:00 PM PDT35Good5.638.9
Sun, 9:00 PM PDT35Good638.8
Sun, 10:00 PM PDT36Good738.7
Sun, 11:00 PM PDT39Good7.538.1
Mon, 12:00 AM PDT40Good7.537.2
Mon, 1:00 AM PDT41Good7.736
Mon, 2:00 AM PDT41Good7.734.6
Mon, 3:00 AM PDT41Good7.633.9
Mon, 4:00 AM PDT40Good6.734.3
Mon, 5:00 AM PDT39Good6.534.1
Mon, 6:00 AM PDT38Good6.733.7
Mon, 7:00 AM PDT38Good6.533.4
Mon, 8:00 AM PDT35Good5.432.6
Mon, 9:00 AM PDT35Good6.232
Mon, 10:00 AM PDT38Good7.932.2
Mon, 11:00 AM PDT39Good7.732.8
Mon, 12:00 PM PDT39Good6.933.5
Mon, 1:00 PM PDT40Good7.834.4
Mon, 2:00 PM PDT45Good9.435.9
Mon, 3:00 PM PDT51Moderate10.337.7
Mon, 4:00 PM PDT51Moderate9.440.3
Mon, 5:00 PM PDT51Moderate8.943
Mon, 6:00 PM PDT49Good8.445.2
Mon, 7:00 PM PDT44Good6.946.5
Mon, 8:00 PM PDT44Good647.5
Mon, 9:00 PM PDT44Good648
Mon, 10:00 PM PDT44Good7.247.9
Mon, 11:00 PM PDT44Good8.547.4
Tue, 12:00 AM PDT46Good9.546.7
Tue, 1:00 AM PDT49Good9.845.7
Tue, 2:00 AM PDT51Moderate1044.2
Tue, 3:00 AM PDT52Moderate9.743
Tue, 4:00 AM PDT49Good8.342
Tue, 5:00 AM PDT47Good7.641.2
Tue, 6:00 AM PDT45Good7.941
Tue, 7:00 AM PDT46Good8.440.4
Tue, 8:00 AM PDT44Good7.639.1
Tue, 9:00 AM PDT46Good8.738.5
Tue, 10:00 AM PDT48Good9.439.1
Tue, 11:00 AM PDT47Good8.440.1
Tue, 12:00 PM PDT44Good6.741.1
Tue, 1:00 PM PDT40Good6.241.8
Tue, 2:00 PM PDT39Good5.442.2
Tue, 3:00 PM PDT39Good5.342.6
Tue, 4:00 PM PDT40Good4.843.6
Tue, 5:00 PM PDT41Good4.844.3
Tue, 6:00 PM PDT41Good5.244.5
Tue, 7:00 PM PDT41Good4.544.4
Tue, 8:00 PM PDT41Good3.944.3
Tue, 9:00 PM PDT40Good4.543.4
Tue, 10:00 PM PDT39Good5.342.4
Tue, 11:00 PM PDT38Good5.541.6
Wed, 12:00 AM PDT37Good5.740.9
Wed, 1:00 AM PDT37Good5.840.1
Wed, 2:00 AM PDT35Good5.738.7
Wed, 3:00 AM PDT34Good5.337.1
Wed, 4:00 AM PDT32Good4.235.7
Wed, 5:00 AM PDT32Good435.3

Fine particles in micrograms per cubic meter, ozone in parts per billion as an 8-hour average. The index for each hour is EPA’s: the ozone figure is already the 8-hour average the ozone index is defined on, and the particle figure is run through EPA’s NowCast, which is how an hourly PM2.5 concentration becomes an index.

Smoke

NOAA’s Hazard Mapping System analysts drew light smoke over Camino in satellite imagery today (Sun, 1:00 PM PDT to Sun, 4:30 PM PDT). That is smoke seen from above; it is not always smoke at ground level.

NOAA’s model forecasts near-surface smoke peaking at 18.3 µg/m³ around Sun, 11:00 AM PDT.

Smoke on the radar over Camino

What this means

Good

Air quality is satisfactory, and air pollution poses little or no risk.

Who is affected
Nobody is expected to be affected.
What to do
It is a good day to be outside.
Index range
0 to 50

Category descriptions are the Environmental Protection Agency’s own.

What these numbers are. An index beside a monitor’s name is a measurement, published hourly by AirNow and preliminary until the operating agency certifies it. A category for today or tomorrow is a state or local agency forecaster’s own forecast for a reporting area. An hourly index is NOAA’s air quality model on a five-kilometer grid, not a reading from any instrument. Where a town has no monitor within reach, only the model figures appear, and the page says so.

Nearby

The nearest towns with a page of their own, closest first.

Weather forecast for CaminoWarnings in El Dorado CountyLive radar over CaminoCalifornia air quality

Sources

Observations and daily forecasts from AirNow, the US Environmental Protection Agency’s program with NOAA, the National Park Service, NASA, tribal, state and local agencies. Hourly forecasts from NOAA’s National Air Quality Forecast Capability. Smoke analysis from NOAA’s Hazard Mapping System. Alerts from the National Weather Service. Index categories and breakpoints are EPA’s, as revised in 2024.